Blades boss Chris Wilder says everyone is 'hurting' after Saturday's loss at Millwall.
Steve Morison's late penalty after a Jack O'Connell handball settled the contest in the Lions favour despite Stefan Scougall cancelling out an early strike from Shaun Williams.
Speaking afterwards, the Gaffer remarked: "It's another disappointing result for everyone connected to this football club; one point from four games isn't good enough.
"We started very well and dominated the game, falling behind against the run of play. But we showed character and steel to get back into the game and for the remainder of the first-half we dominated the ball and had the chances, but you have to make them count and put the opposition to bed.
"Millwall reacted positively in the second-half and edged it. They had chances and there attacking players at the top of the pitch caused us problems.
"Unfortunately we've not defended in and around the box well enough and that has ultimately decided the result.
"We will reflect, the players need to think about their performances and we need to look at certain things before talking about them, we'll have a sensible appraisal as a group on Monday."
Wilder added: "I'm very emotional about the situation because as people know this is a club that means a lot to me and a lot to fans and the people associated with it.
"We're all hurting and the position we're in isn't anywhere near where we want to be, we've lost games too easily this season, if you can't win you mustn't get beaten and that's something we must address quickly."